Oxford pegmatite field? (The origins of the Bemis Stream granite pegmatite are unknown. In Western Maine, the granitic pegmatites are believed to have been derived by partial melting of muscovite-bearing pelitic rocks [London, 2008; Simmons, W., Foord, E., Falster, A., and King, V., 1995]. The Sebago Batholith (~294 my BP) and the much older Mooselookmeguntic Pluton (~370 my BP) are candidates for the heat source leading to partial melting and generation of pegmatite-forming fluids in this area, although there is a proximity factor favoring the older pluton. An even older thermal event (~404 my BP) may be responsible for the necessary heat. Although there are granite/granodiorite hosted granite pegmatites in Western Maine, most of the Western Maine granite pegmatites are probably not derived from plutonic source fluids, but are from the thermal aureole associated with plutons. Studies are currently under way to further characterize the origins.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

18 valid minerals.

Detailed Mineral List:

ⓘ Albite

Formula: Na(AlSi₃O₈)

References:

W. B. Thompson, D. L. Joyner, R. G. Woodman, and V. T. King (2005) A Collector's Guide to Maine Mineral Localities. Maine Geological Survey Bulletin 41

ⓘ Albite var. Cleavelandite

Formula: Na(AlSi₃O₈)

References:

Mineralogical Record 22:382

W. B. Thompson, D. L. Joyner, R. G. Woodman, and V. T. King (2005) A Collector's Guide to Maine Mineral Localities. Maine Geological Survey Bulletin 41

ⓘ Bertrandite

Formula: Be₄(Si₂O₇)(OH)₂

References:

W. B. Thompson, D. L. Joyner, R. G. Woodman, and V. T. King (2005) A Collector's Guide to Maine Mineral Localities. Maine Geological Survey Bulletin 41

ⓘ Beryl

Formula: Be₃Al₂(Si₆O₁₈)

References:

W. B. Thompson, D. L. Joyner, R. G. Woodman, and V. T. King (2005) A Collector's Guide to Maine Mineral Localities. Maine Geological Survey Bulletin 41

ⓘ Cassiterite

Formula: SnO₂

References:

Thompson, Woodrow B., Joyner, Ronald L., Woodman, Raymond G., King, Vandall T. (1998) Bulletin (41), A Collector's Guide to Maine Mineral Localities (3rd ed.) Maine Geological Survey

W. B. Thompson, D. L. Joyner, R. G. Woodman, and V. T. King (2005) A Collector's Guide to Maine Mineral Localities. Maine Geological Survey Bulletin 41

ⓘ Columbite-(Mn)

Formula: Mn²⁺Nb₂O₆

References:

W. B. Thompson, D. L. Joyner, R. G. Woodman, and V. T. King (2005) A Collector's Guide to Maine Mineral Localities. Maine Geological Survey Bulletin 41

ⓘ Elbaite

Formula: Na(Li_1.5Al_1.5)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)

References:

W. B. Thompson, D. L. Joyner, R. G. Woodman, and V. T. King (2005) A Collector's Guide to Maine Mineral Localities. Maine Geological Survey Bulletin 41

ⓘ Fluorapatite

Formula: Ca₅(PO₄)₃F

References:

W. B. Thompson, D. L. Joyner, R. G. Woodman, and V. T. King (2005) A Collector's Guide to Maine Mineral Localities. Maine Geological Survey Bulletin 41

ⓘ Microcline

Formula: K(AlSi₃O₈)

References:

W. B. Thompson, D. L. Joyner, R. G. Woodman, and V. T. King (2005) A Collector's Guide to Maine Mineral Localities. Maine Geological Survey Bulletin 41

ⓘ 'Microlite Group'

Formula: A_2-mTa₂X_6-wZ_-n

References:

W. B. Thompson, D. L. Joyner, R. G. Woodman, and V. T. King (2005) A Collector's Guide to Maine Mineral Localities. Maine Geological Survey Bulletin 41

ⓘ Montebrasite

Formula: LiAl(PO₄)(OH)

References:

W. B. Thompson, D. L. Joyner, R. G. Woodman, and V. T. King (2005) A Collector's Guide to Maine Mineral Localities. Maine Geological Survey Bulletin 41

ⓘ Montmorillonite

Formula: (Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O

References:

W. B. Thompson, D. L. Joyner, R. G. Woodman, and V. T. King (2005) A Collector's Guide to Maine Mineral Localities. Maine Geological Survey Bulletin 41

ⓘ Muscovite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

References:

W. B. Thompson, D. L. Joyner, R. G. Woodman, and V. T. King (2005) A Collector's Guide to Maine Mineral Localities. Maine Geological Survey Bulletin 41

ⓘ Muscovite var. Damourite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

References:

King, Vandall T., Foord, Eugene E. (1994) Mineralogy of Maine Vol. 1 - Descriptive mineralogy. Maine Geological Survey.

W. B. Thompson, D. L. Joyner, R. G. Woodman, and V. T. King (2005) A Collector's Guide to Maine Mineral Localities. Maine Geological Survey Bulletin 41

ⓘ Pollucite

Formula: (Cs,Na)₂(Al₂Si₄O₁₂) · 2H₂O

References:

W. B. Thompson, D. L. Joyner, R. G. Woodman, and V. T. King (2005) A Collector's Guide to Maine Mineral Localities. Maine Geological Survey Bulletin 41

ⓘ Quartz

Formula: SiO₂

References:

Mineralogical Record 22:382

ⓘ Spessartine

Formula: Mn²⁺₃Al₂(SiO₄)₃

References:

W. B. Thompson, D. L. Joyner, R. G. Woodman, and V. T. King (2005) A Collector's Guide to Maine Mineral Localities. Maine Geological Survey Bulletin 41

ⓘ Sphalerite

Formula: ZnS

References:

W. B. Thompson, D. L. Joyner, R. G. Woodman, and V. T. King (2005) A Collector's Guide to Maine Mineral Localities. Maine Geological Survey Bulletin 41

ⓘ Spodumene

Formula: LiAlSi₂O₆

References:

W. B. Thompson, D. L. Joyner, R. G. Woodman, and V. T. King (2005) A Collector's Guide to Maine Mineral Localities. Maine Geological Survey Bulletin 41

ⓘ Tapiolite-(Mn)

Formula: Mn²⁺Ta₂O₆

References:

King, Vandall T., Foord, Eugene E. (1994) Mineralogy of Maine Vol. 1 - Descriptive mineralogy. Maine Geological Survey.

W. B. Thompson, D. L. Joyner, R. G. Woodman, and V. T. King (2005) A Collector's Guide to Maine Mineral Localities. Maine Geological Survey Bulletin 41

ⓘ Wodginite

Formula: Mn²⁺Sn⁴⁺Ta₂O₈

References:

King, Vandall T., Robinson, George W. (1991) What's New in Minerals? - Annual World Summary of Mineral Discoveries. The Mineralogical Record, 22 (5) 381-393pp.382-382

W. B. Thompson, D. L. Joyner, R. G. Woodman, and V. T. King (2005) A Collector's Guide to Maine Mineral Localities. Maine Geological Survey Bulletin 41

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘ	Sphalerite	2.CB.05a	ZnS
Group 4 - Oxides and Hydroxides
ⓘ	'Microlite Group'	4.00.	A_2-mTa₂X_6-wZ_-n
ⓘ	Quartz	4.DA.05	SiO₂
ⓘ	Cassiterite	4.DB.05	SnO₂
ⓘ	Tapiolite-(Mn)	4.DB.10	Mn²⁺Ta₂O₆
ⓘ	Columbite-(Mn)	4.DB.35	Mn²⁺Nb₂O₆
ⓘ	Wodginite	4.DB.40	Mn²⁺Sn⁴⁺Ta₂O₈
Group 8 - Phosphates, Arsenates and Vanadates
ⓘ	Montebrasite	8.BB.05	LiAl(PO₄)(OH)
ⓘ	Fluorapatite	8.BN.05	Ca₅(PO₄)₃F
Group 9 - Silicates
ⓘ	Spessartine	9.AD.25	Mn²⁺₃Al₂(SiO₄)₃
ⓘ	Bertrandite	9.BD.05	Be₄(Si₂O₇)(OH)₂
ⓘ	Beryl	9.CJ.05	Be₃Al₂(Si₆O₁₈)
ⓘ	Elbaite	9.CK.05	Na(Li_1.5Al_1.5)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
ⓘ	Spodumene	9.DA.30	LiAlSi₂O₆
ⓘ	Muscovite var. Damourite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ		9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	Montmorillonite	9.EC.40	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
ⓘ	Microcline	9.FA.30	K(AlSi₃O₈)
ⓘ	Albite var. Cleavelandite	9.FA.35	Na(AlSi₃O₈)
ⓘ		9.FA.35	Na(AlSi₃O₈)
ⓘ	Pollucite	9.GB.05	(Cs,Na)₂(Al₂Si₄O₁₂) · 2H₂O

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Bertrandite	Be₄(Si₂O₇)(OH)₂
H	ⓘ Elbaite	Na(Li_1.5Al_1.5)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
H	ⓘ Montebrasite	LiAl(PO₄)(OH)
H	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Montmorillonite	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
H	ⓘ Pollucite	(Cs,Na)₂(Al₂Si₄O₁₂) · 2H₂O
H	ⓘ Muscovite var. Damourite	KAl₂(AlSi₃O₁₀)(OH)₂
Li	Lithium
Li	ⓘ Elbaite	Na(Li_1.5Al_1.5)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
Li	ⓘ Montebrasite	LiAl(PO₄)(OH)
Li	ⓘ Spodumene	LiAlSi₂O₆
Be	Beryllium
Be	ⓘ Bertrandite	Be₄(Si₂O₇)(OH)₂
Be	ⓘ Beryl	Be₃Al₂(Si₆O₁₈)
B	Boron
B	ⓘ Elbaite	Na(Li_1.5Al_1.5)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
O	Oxygen
O	ⓘ Albite	Na(AlSi₃O₈)
O	ⓘ Bertrandite	Be₄(Si₂O₇)(OH)₂
O	ⓘ Beryl	Be₃Al₂(Si₆O₁₈)
O	ⓘ Cassiterite	SnO₂
O	ⓘ Elbaite	Na(Li_1.5Al_1.5)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
O	ⓘ Fluorapatite	Ca₅(PO₄)₃F
O	ⓘ Columbite-(Mn)	Mn²⁺Nb₂O₆
O	ⓘ Tapiolite-(Mn)	Mn²⁺Ta₂O₆
O	ⓘ Microcline	K(AlSi₃O₈)
O	ⓘ Montebrasite	LiAl(PO₄)(OH)
O	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Montmorillonite	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
O	ⓘ Pollucite	(Cs,Na)₂(Al₂Si₄O₁₂) · 2H₂O
O	ⓘ Quartz	SiO₂
O	ⓘ Spessartine	Mn₃²⁺Al₂(SiO₄)₃
O	ⓘ Spodumene	LiAlSi₂O₆
O	ⓘ Wodginite	Mn²⁺Sn⁴⁺Ta₂O₈
O	ⓘ Albite var. Cleavelandite	Na(AlSi₃O₈)
O	ⓘ Muscovite var. Damourite	KAl₂(AlSi₃O₁₀)(OH)₂
F	Fluorine
F	ⓘ Fluorapatite	Ca₅(PO₄)₃F
Na	Sodium
Na	ⓘ Albite	Na(AlSi₃O₈)
Na	ⓘ Elbaite	Na(Li_1.5Al_1.5)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
Na	ⓘ Montmorillonite	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
Na	ⓘ Pollucite	(Cs,Na)₂(Al₂Si₄O₁₂) · 2H₂O
Na	ⓘ Albite var. Cleavelandite	Na(AlSi₃O₈)
Mg	Magnesium
Mg	ⓘ Montmorillonite	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
Al	Aluminium
Al	ⓘ Albite	Na(AlSi₃O₈)
Al	ⓘ Beryl	Be₃Al₂(Si₆O₁₈)
Al	ⓘ Elbaite	Na(Li_1.5Al_1.5)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
Al	ⓘ Microcline	K(AlSi₃O₈)
Al	ⓘ Montebrasite	LiAl(PO₄)(OH)
Al	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Montmorillonite	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
Al	ⓘ Pollucite	(Cs,Na)₂(Al₂Si₄O₁₂) · 2H₂O
Al	ⓘ Spessartine	Mn₃²⁺Al₂(SiO₄)₃
Al	ⓘ Spodumene	LiAlSi₂O₆
Al	ⓘ Albite var. Cleavelandite	Na(AlSi₃O₈)
Al	ⓘ Muscovite var. Damourite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	Silicon
Si	ⓘ Albite	Na(AlSi₃O₈)
Si	ⓘ Bertrandite	Be₄(Si₂O₇)(OH)₂
Si	ⓘ Beryl	Be₃Al₂(Si₆O₁₈)
Si	ⓘ Elbaite	Na(Li_1.5Al_1.5)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
Si	ⓘ Microcline	K(AlSi₃O₈)
Si	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Montmorillonite	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
Si	ⓘ Pollucite	(Cs,Na)₂(Al₂Si₄O₁₂) · 2H₂O
Si	ⓘ Quartz	SiO₂
Si	ⓘ Spessartine	Mn₃²⁺Al₂(SiO₄)₃
Si	ⓘ Spodumene	LiAlSi₂O₆
Si	ⓘ Albite var. Cleavelandite	Na(AlSi₃O₈)
Si	ⓘ Muscovite var. Damourite	KAl₂(AlSi₃O₁₀)(OH)₂
P	Phosphorus
P	ⓘ Fluorapatite	Ca₅(PO₄)₃F
P	ⓘ Montebrasite	LiAl(PO₄)(OH)
S	Sulfur
S	ⓘ Sphalerite	ZnS
K	Potassium
K	ⓘ Microcline	K(AlSi₃O₈)
K	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
K	ⓘ Muscovite var. Damourite	KAl₂(AlSi₃O₁₀)(OH)₂
Ca	Calcium
Ca	ⓘ Fluorapatite	Ca₅(PO₄)₃F
Ca	ⓘ Montmorillonite	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
Mn	Manganese
Mn	ⓘ Columbite-(Mn)	Mn²⁺Nb₂O₆
Mn	ⓘ Tapiolite-(Mn)	Mn²⁺Ta₂O₆
Mn	ⓘ Spessartine	Mn₃²⁺Al₂(SiO₄)₃
Mn	ⓘ Wodginite	Mn²⁺Sn⁴⁺Ta₂O₈
Zn	Zinc
Zn	ⓘ Sphalerite	ZnS
Nb	Niobium
Nb	ⓘ Columbite-(Mn)	Mn²⁺Nb₂O₆
Sn	Tin
Sn	ⓘ Cassiterite	SnO₂
Sn	ⓘ Wodginite	Mn²⁺Sn⁴⁺Ta₂O₈
Cs	Caesium
Cs	ⓘ Pollucite	(Cs,Na)₂(Al₂Si₄O₁₂) · 2H₂O
Ta	Tantalum
Ta	ⓘ Tapiolite-(Mn)	Mn²⁺Ta₂O₆
Ta	ⓘ Microlite Group	A_2-mTa₂X_6-wZ_-n
Ta	ⓘ Wodginite	Mn²⁺Sn⁴⁺Ta₂O₈

Other Regions, Features and Areas containing this locality

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Bemis Stream prospect, D Township, Franklin County, Maine, USAiRegional Level TypesBemis Stream prospectProspect D TownshipTownship Franklin CountyTownship MaineState USACountry function showexplain() { $("#locexplain").toggle(); if (typeof movemap === "function") movemap(); }

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Mineral List

Detailed Mineral List:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

List of minerals for each chemical element

Other Regions, Features and Areas containing this locality

Bemis Stream prospect, D Township, Franklin County, Maine, USA i
Regional Level Types
Bemis Stream prospect Prospect
D Township Township
Franklin County Township
Maine State
USA Country